What is it?

What will be the result of it in a short time?
a) A big chance to avoid injustice.
b) Hundreds of pounds of presure on the referees.
c) A way to stop controvesials about tennis and therefore a way to stop people talking about important points for a long time. We should remember that this controversials are really important for tennis life.

I thought it was interesting. Didn't slow the game too much. It might give those players a bigger head than most already have though. I for one don't want to see them bashing those poor guys in the chairs more than do now.